Echinopsis backebergii

Echinopsis backebergii is a species of flowering plant in the cactus family Cactaceae, native to eastern Bolivia and southern Peru. It grows to 5 cm (2 in) tall and wide, with single or clustered globose stems 4-5 cm thick, with about 15 ribs and covered in grey-brown spines. Large, showy, carmine-red flowers are borne in summer. As the minimum temperature requirement is 10 °C (50 °F), in temperate regions it must be grown under glass with heat.

Two subspecies, E. backebergii subsp. backebergii and E. backebergii subsp. wrightiana, have gained the Royal Horticultural Society's Award of Garden Merit.